Dart Big Chief Heads 18 or 14 Degree

Dart Big Chief Heads 18 or 14 Degree

$4995.00

Dart Big Chief Pro1 14 or 18° 424cc #18474136-18475136-18464136 or 18465136 4.5-4.600“: Top Sportsman, Top Dragster, Pro Mod and Pro Street competition. Excellent with alcohol and nitrous, over 7,000 rpm, over 500 cubic inches

Dart Big Chief Pro1 14 or 18° 424-440cc #1807413618075136-18174136 or 18175136 4.5-4.600″: The original Dart Big Chief put the spread port design on the map, winning three NHRA Pro Stock championships before being banned from the class.

Dart Big Chief 14° 433cc #18275179-18375189 4.600″: Titanium Intake and Exhaust Valves: Maximum Top Sportsman, Top Dragster, Pro Mod and Pro Street competition. Excellent with alcohol and nitrous, over 7,000 rpm, over 500 cubic inches. An updated Dart Big Chief 385 program incorporates a 2.500” intake valve for a dramatic air flow increase to 495/349@.900″.

Dart Big Chief  II 11° 518cc CNC Full Oval Port #18575179 4.600″: Maximum Top Sportsman, Top Dragster, Pro Mod and Pro Street competition. Excellent with alcohol and nitrous, over 7,000 rpm, over 500 cubic inches, Flows 522/352@.900

Dart Big Chief 14° 505cc 5.0″ Bore Space #18777169 4.750″: For 5.000” bore space engines. Maximum Top Sportsman, Top Dragster, Pro Mod and Pro Street competition. Excellent with alcohol and nitrous, over 7,000 rpm. Flows 560/375@1.0″

 

Components

  • Dart Multi Angle Radius Valve Job
  • Stainless Steel or Titanium Valves
  • Utilizes Some Existing Box Manifolds or Sheet Metal
  • Standard BBC Raised Exhaust Port Except for 5.0″ BS
  • Jesel or T&D Shaft Rocker for all Heads
  • CNC Versions have Fully  cnc’d CC, Intake, Exhaust Ports
  • 1.650 Triple Upgraded Roller Valve Springs
  • Titanium Retainers for all Heads
  • Hardened Spring Seats or Washers
  • Copper Beryllium Valve Seats with Titanium Valves

Available Upgrades

Big Chief 18° or 14° 424cc as Cast Cylinder Heads, Stainless Steel Valves, Triple Springs, Titanium Retainers flow 455/325@.900″
+ $4995.00
Big Chief 18-14° Fully CNC Ported 424cc-440cc Heads, Titanium Int/Exh Valves, Copper Beryllium Seats, Triple Springs, Titanium Ret.
+ $2545.00
Big Chief 14° Oval Port Fully CNC Ported 433cc Heads, 2.5/1.8″ Titanium Int/Exh, Copper Beryllium Seats, Triple Springs, Titanium Ret. flow 495/349@.900″
+ $5435.00
Big Chief II 11° Fully CNC Ported 512cc Heads, 2.47/1.84″ Titanium Int/Exh, Copper Beryllium Seats, Triple Springs, Titanium Ret. flow 522/352@.900″
+ $5435.00
Big Chief 14° 505cc Fully CNC Ported 5.0″ B-Space Head, 2.575/1.9″ Titanium Int/Exh, Copper Beryllium Seats, Triple Springs, Titanium Ret. flow 560/375@1.0″
+ $6727.00
Dart Specific Fit Inner Valley Head Stud Kit
+ $ 95.00
Dart Specific Fit Head Stud Kit Set for 11-14-18° Heads
+ $ 300.00
Jesel Pro Series Shaft Rocker System
+ $2195.00
T&D Pro Series Shaft Rocker System
+ $1995.00
Needle Roller Bearing Tip Rocker Upgrade
+ $ 295..00
Titanium Intake and Exhaust Valves for 14-18° 18474136-18475136-18464136 or 18465136
+ $2000.00

All Completed Heads Come with Specific Build Sheet, all Part numbers, Spring Rates and Installed Height Settings

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